[U-Boot-Users] link error on first compile

[Tim Bird]

Hi all,

On a fresh untar; make xxx_config; make all, I get an error linking
the example program hello_world with start.o.

This can be worked around by removing 'examples' from the list of
SUBDIRS in the top-level Makefile.

After building, I added 'examples' back in.  Strangely, for one set
of builds, this solved my problem (and hello_world linked OK, even
after a 'make distclean'), but for another set of builds, hello_world
wouldn't link even when cpu/arm925t/start.o was present.

I haven't been able to figure out the problem, but I thought I'd
report it.  This is with a home-built gcc:
arm-sony-linux-gcc (GCC) 3.4.3

 -- Tim

----------------
[tbird at timdesk u-boot-1.1.2]$ make all
make[1]: Entering directory `/home/tbird/work/innovator/u-boot-1.1.2/tools'
make[1]: `.depend' is up to date.
make[1]: Leaving directory `/home/tbird/work/innovator/u-boot-1.1.2/tools'
make[1]: Entering directory `/home/tbird/work/innovator/u-boot-1.1.2/examples'
make[1]: `.depend' is up to date.
make[1]: Leaving directory `/home/tbird/work/innovator/u-boot-1.1.2/examples'
make[1]: Entering directory `/home/tbird/work/innovator/u-boot-1.1.2/post'
make[1]: `.depend' is up to date.
make[1]: Leaving directory `/home/tbird/work/innovator/u-boot-1.1.2/post'
make[1]: Entering directory `/home/tbird/work/innovator/u-boot-1.1.2/post/cpu'
make[1]: `.depend' is up to date.
make[1]: Leaving directory `/home/tbird/work/innovator/u-boot-1.1.2/post/cpu'
make -C tools all
make[1]: Entering directory `/home/tbird/work/innovator/u-boot-1.1.2/tools'
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -c -o img2srec.o img2srec.c
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O  -o img2srec img2srec.o
strip img2srec
gcc -g -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -c mkimage.c
gcc -g -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -c crc32.c
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O  -o mkimage mkimage.o crc32.o
strip mkimage
gcc -g -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -c envcrc.c
gcc -g  -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -c environment.c
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -o envcrc envcrc.o crc32.o environment.o
gcc -g -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -c gen_eth_addr.c
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O  -o gen_eth_addr gen_eth_addr.o
strip gen_eth_addr
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O -c -o bmp_logo.o bmp_logo.c
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE=0x11080000 -DUSE_HOSTCC -O  -o bmp_logo bmp_logo.o
strip bmp_logo
./bmp_logo logos/denx.bmp >/home/tbird/work/innovator/u-boot-1.1.2/include/bmp_logo.h
make[1]: Leaving directory `/home/tbird/work/innovator/u-boot-1.1.2/tools'
make -C examples all
make[1]: Entering directory `/home/tbird/work/innovator/u-boot-1.1.2/examples'
arm-sony-linux-gcc -g  -Os   -fno-strict-aliasing  -fno-common -ffixed-r8 -malignment-traps -msoft-float -D__KERNEL__ -DTEXT_BASE=0x11080000 -I/home/tbird/work/innovator/u-boot-1.1.2/include
-fno-builtin -ffreestanding -nostdinc -isystem /home/local/arm-sony-linux/devel/bin/../lib/gcc/arm-sony-linux/3.4.3/include -pipe  -DCONFIG_ARM -D__ARM__ -mapcs-32 -march=armv4 -Wall
-Wstrict-prototypes -c -o stubs.o stubs.c
arm-sony-linux-ar crv libstubs.a  stubs.o
a - stubs.o
arm-sony-linux-gcc -g  -Os   -fno-strict-aliasing  -fno-common -ffixed-r8 -malignment-traps -msoft-float -D__KERNEL__ -DTEXT_BASE=0x11080000 -I/home/tbird/work/innovator/u-boot-1.1.2/include
-fno-builtin -ffreestanding -nostdinc -isystem /home/local/arm-sony-linux/devel/bin/../lib/gcc/arm-sony-linux/3.4.3/include -pipe  -DCONFIG_ARM -D__ARM__ -mapcs-32 -march=armv4 -Wall
-Wstrict-prototypes -g  -Os   -fno-strict-aliasing  -fno-common -ffixed-r8 -malignment-traps -msoft-float -D__KERNEL__ -DTEXT_BASE=0x11080000 -I/home/tbird/work/innovator/u-boot-1.1.2/include
-fno-builtin -ffreestanding -nostdinc -isystem /home/local/arm-sony-linux/devel/bin/../lib/gcc/arm-sony-linux/3.4.3/include -pipe  -DCONFIG_ARM -D__ARM__ -mapcs-32 -march=armv4 -I.. -Bstatic -T
/home/tbird/work/innovator/u-boot-1.1.2/board/omap1510inn/u-boot.lds -Ttext 0x11080000   hello_world.c   -o hello_world
/home/local/arm-sony-linux/devel/bin/../lib/gcc/arm-sony-linux/3.4.3/../../../../arm-sony-linux/bin/ld: cannot find cpu/arm925t/start.o
collect2: ld returned 1 exit status
make[1]: *** [hello_world] Error 1
make[1]: Leaving directory `/home/tbird/work/innovator/u-boot-1.1.2/examples'
make: *** [examples] Error 2
-----

=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Electronics
=============================